J Periodontol:烟草的烟雾是否影响口腔成纤维细胞的敏感性

2017-11-24 MedSci MedSci原创

吸烟者的牙周病发病率和严重程度增加。尽管香烟烟雾含有> 4000种化学成分,可能影响牙周组织,但对无烟烟草的影响却知之甚少。本研究比较了香烟烟雾提取物(CSE)和无烟烟草提取物(STE)对体外牙周膜(PDL)和牙龈成纤维细胞的存活和运动的影响。

吸烟者的牙周病发病率和严重程度增加。尽管香烟烟雾含有> 4000种化学成分,可能影响牙周组织,但对无烟烟草的影响却知之甚少。本研究比较了香烟烟雾提取物(CSE)和无烟烟草提取物(STE)对体外牙周膜(PDL)和牙龈成纤维细胞的存活和运动的影响。

方法:PDL和牙龈成纤维细胞暴露于不同浓度的CSE,STE或尼古丁中。将活细胞用钙黄绿素乙酰标记,使用荧光显微镜观察,并使用荧光多孔板读数器定量测量。使用体外损伤和胶原凝胶收缩实验来评估细胞运动性。

结果:随着CSE和STE浓度的增加,牙龈和PDL成纤维细胞的细胞活力降低。基于相对尼古丁含量,CSE比STE更具细胞毒性。与牙龈成纤维细胞相比,PDL成纤维细胞对CSE和STE也更敏感。亚致命剂量的CSE细胞运动和凝胶收缩减弱,而STE的影响较小。单独使用≤0.5mM的尼古丁几乎没有影响。

结论:烟草制品对牙周组织的许多潜在影响可能是由于对正常成纤维细胞功能的直接抑制。CSE比STE对PDL和牙龈成纤维细胞的功能损伤很大。 PDL成纤维细胞似乎比牙龈成纤维细胞对CSE和STE更敏感。因此,香烟烟雾可能比无烟烟草的影响更大。

原始出处:

Thomas E. Lallier, et al. Greater Sensitivity of Oral Fibroblasts to Smoked Versus Smokeless Tobacco. Journal of Periodontology . 2017 December. doi: 10.1902/jop.2017.170232

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    2018-08-13 feather89
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    2017-11-26 mnda
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    2017-11-25 lyh994

    研究得非常细了

    0

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    2017-11-24 131****1460

    学习了受益匪浅

    0

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